Gearing for spbinor-motob pahs



P. MUZILLO.

' BEARING FOR SPRING MOTOR FANS.

APPLICATION-FILED JAN. 19, 1918.

1,303371 1 Patented May 13, 1919.

INVENTOR yam.

ATTORNEY WITNES'SES UNITED STATES .PASCQUALE MUZILIiO, or BROoKLYN,1 iEW YORK.

Giannini; Eon 'srnms-ivio'ron rims.

Specification of Letters Patent.

Application filed militar 19,1918. Serial No. 212,822.

To all whom it may concern:

Be it known that I, PAsc UALE MtiziLLo,

a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Gearings' for Spring- Motor Fans, of which the following is a specification. e

This invention relates to spring driven fans and has for its principal object, the provision of a simpleform of apparatusof this character which will be portable, inexpensive of construction, strong and durable and designed whereby the fan can be driven at different relative speedsin an effective and novel manner. I

With the above and otherobjects in view which will appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangements of parts which. will hereinafter be fully described and particularly pointed out. in the claim. 2

In the accompanying drawings, has been illustrated, a single and preferred form of the invention, it ,ioeing, however, understood that no limitations are necessarily made to the precise structural details therein exhibited but that changes, modifications within the scope of the claim may be resorted to when desired.

In the drawings Figure 1, is a side view of the motor.

Fig. 2 is a conventional view of the gearmg.

Fig. 3 is a front view of the motor.

Fig. 4 is a detail view through a portion of the motor, showing the speed changing mechanism.

Figs. 5 to 9 inclusive are details illustrating the several mechanical features of. the invention.

The invention consists in providing a fan casing 1, having a driving shaft 2 on which is loosely mounted a relatively large gear wheel 3 which is in mesh with a smaller gear wheel 4 on a shaft 5. On said shaft 5 is a large gear wheel 6 which meshes with a small gear wheel 7 on a shaft 8. The shaft 8 also supports a fixed large gear wheel 9 which inturn, meshes with a small gear wheel 10 on a shaft 11, the latter also being provided with a large gear wheel 12 which serves primarily as means as the same is in mesh with a small gear. wheel 13, on the driven fan shaft 14.

alterations and a power transferring Patented May 13, 1919;

While it is described that the gear Wheel 5 12, operates as. a power transferring means, it in fact, constitutes only a portion of said transferring means as I particularly desire to embody the same with alow speed gear wheel 15 mountedon ashaft 16,? in the fancasing. The shaft 16 is provided with a pinion 16, ai'ranged in mesh with a large gear wheel 11, on the shaftll, i

The fan shaft 14 is slidable inangular slots 17 formed in the sides of the fan ("as ing, It is supported in the yoke 18, of a slid'ng stem 19' which moves through the top of the casing, the upper end of which has a .manipulating.

handle 20. i, Thesaid stern, 19 is provided with a lug 21, against which a leaf spring 22 is designed to always come in contact. The ends of the slots 17 are provided with enlargements 23 and 24, which constitute seats for the ends of the shaft 14, when the same is respectively moved to the opposite ends of said slots. These enlargements are off-set in the direction of the gear wheels 12and 15. The enlargements are so spacedapart and the length of the slots proportioned so that parallel lines drawn from the shafts 11 and 16, will pass directly through the centers of said enlargements. The stem 19, aside from being movable in a longitudinal direction, is also capable of moving laterally in order that it will accommodate itself to the action of the leaf spring 22. Through the relative arrangement of the gear wheels 12 and 15, and the position of the enlargements 23 and 24, of the slots 17, it will be observed that when the, stem 19, is moved to the dotted line position shown in Fig. 4, the shaft 14, will be seated in the enlargements 23, and

the gear wheel 13, brought into engagewheel 13, will be then brought into intermeshing engagement with the high speed gear 12. In this manner, it is readily seen that a simple mechanism is provided whereby different relative speeds of rotation can be imparted to the shaft 14. Said shaft 14, is provided with a suitable fan blade 25.

The gear train between the driving shaft and the driven shaft 11, is particularly designed for the purpose of multiplying the speed of rotation of said driven shaft with a minimum loss of power in the'operating while its opposite end spring. However, I do not desire to limit myself to the particular arrangement herein shown as many well'known arrangements may be resorted to for this purpose.

The driving shaft is key actuated and it includes a ratchet wheel 26, over which the usual escaping'dog 27, is adapted to play. This dog is carried by the wheel 3, in order that the latter will become p081" tively fixed to the shaft to rotate with the same in one direction. A large coiled spring 28, isfixed at one of its ends to the shaft, is fixed at 29, to the fan casing.

Mechanism is employed for starting and stopping the motor when desired and it con sists of a rocker 30, having an actuating arm 31, which extends through an arcuate slot 32, inthe rear wall of the casing, while as shown it also includes a trip arm 33, which is adapted to be arranged-in the path of a co-acting pin 34, on the gear wheel 9, whereby when it is in contact therewith, said Copies of this patent may be obtained for five cents each, by addressing the Washington, I). 0.

wheel will be positively obstructed as will be understood. The power is then thrown out of operation. By reversing the movement of this mechanism, the trip element will be thrown to a different position with respect to the pin 34, and the motor is again free to transfer its power to the fan shaft.

What is claimed as new is A motor of the character described in cluding driven gears arranged substantially side by side, a sliding gear wheel, the driven gears being disposed in the path of movement of the sliding shaft to permit the gear wheel on said shaft to be brought into single intermeshing en agement with said driven gears, and yielda 1e means operating against the shaft to hold the gear wheel thereof in operative relation to said driven gears, as and for the purpose specified.

In testimony whereof I aflix my si nature.

PASCQUALE MUZILLC).

Commissioner of Patents. 

